How to Reset the Oil Life on a GMC Sierra Denali 2500HD/3500HD

1. Display the oil life percentage on the Driver Information Center (DIC).
2. Press and hold the thumbwheel on the steering wheel for several seconds.
3. If the vehicle has no DIC controls, press and hold the trip odometer reset stem instead.
4. When the confirmation message appears, select YES.
5. Check that the oil life now reads 100%.

• Reset only right after an oil change; the display will not reset itself.
• Alternate method: with oil life displayed, fully press the accelerator pedal slowly three times within five seconds.
• If CHANGE ENGINE OIL SOON returns at startup or oil life is near 0%, the reset failed; repeat it.

Source: 2022 GMC Sierra Denali 2500HD/3500HD owner's manual, PDF pages 314, 315, 127. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.